Finding the Fourth Proportional to 2,831.10, 4,241.16 and 1,404.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,831.10 : 4,241.16 = 1,404.31 : x
2. Step 2: Convert to fraction form
   2,831.10/4,241.16 = 1,404.31/x
3. Step 3: Cross multiply
   2,831.10x = 4,241.16 × 1,404.31
4. Step 4: Simplify right side
   2,831.10x = 5,955,892.80
5. Step 5: Solve for x
   x = 5,955,892.80/2,831.10
6. Step 6: Final answer
   x = 2,103.74